《高性能混凝土应用技术规程》CECS207:2006的主要特征  

Characteristics of "Technical Specifications for Application of High Performance Concrete" CECS 207:2006

作　　者：朋改非[1] 

机构地区：[1]北京交通大学,北京100044

出　　处：《施工技术》2008年第1期1-5,共5页Construction Technology

基　　金：国家自然科学基金项目(50478060)

摘　　要：对《高性能混凝土应用技术规程》CECS 207∶2006的主要特征进行了介绍。作为首部关于高性能混凝土应用的标准,该规程规定了高性能混凝土的基本特征和基本参数。首先,必须保证设计要求的强度等级;其次,应针对所处环境进行耐久性设计,以保证在设计使用年限内的结构安全性和正常使用功能。因此,在强度设计和耐久性设计的基础上,方可确定符合特定工程需要的高性能混凝土配合比参数。高性能混凝土的耐久性设计是确定适当原材料与配合比,确保耐久性,如抗中性化、抗冻害、抗盐害破坏、抗硫酸盐腐蚀、抑制碱-骨料反应(AAR)的有害膨胀。该规程对施工的各个环节也作出了明确规定。The author introduces the characteristics of the standard of ＂Technical Specifications for Application of High Performance Concrete （HPC） ＂ CECS 207：2006. As the first standard on application of HPC, this standard specifies basic features and parameters of HPC. Firstly, HPC should be designed to have a required strength grade. Secondly, HPC should be designed to have required durability, in order to provide structural safety and reliable peffonnance in a design service life. Therefore, it is only based on the results of both the strength design and the durability design, that parameters of a mix proportion can he identified for HPC to meet the requirements of a specific engineering project. The main work of durability design is to identify proper raw materials and a mix proportion, to ensure one or several aspects of durability, such as resistance to carbonation, frost, salt attack and sulphate attack as well as harmful expansion due to alkali-aggregate reaction. This standard also specifies requirements for each stage throughout construction of HPC.

关 键 词：高性能混凝土 技术规程 特征参数 施工 

分 类 号：TU528.311[建筑科学—建筑技术科学]